They said that given you are hired, there is no correlation between job performance and your interview score, not that there is no correlation between someone's

They said that given you are hired, there is no correlation between job performance and your interview score, not that there is no correlation between someone's interview score and how that person will perform. It's analogous to saying people who scored 1600 on their SAT perform no better than those who scored 1500, not that SAT scores are unrelated to performance.